delete unnecessary project files

CourseSelection.sln

@@ -5,8 +5,6 @@ VisualStudioVersion = 16.0.29215.179
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CourseSelection", "CourseSelection\CourseSelection.csproj", "{70074DEE-DF94-4CEA-A3FA-474ACFA93074}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MUIWindow", "MUIWindow\MUIWindow.csproj", "{73FB2ED8-61F1-4BB4-A3C2-82534EAE0845}"
-EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Schedule.Code", "Schedule.Code\Schedule.Code.csproj", "{3A8E6744-603D-4D02-847F-07C593C4EE71}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{6F1CBF2A-2033-43AD-B55B-AAA4F74689D1}"
@@ -25,10 +23,6 @@ Global
 		{70074DEE-DF94-4CEA-A3FA-474ACFA93074}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{70074DEE-DF94-4CEA-A3FA-474ACFA93074}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{70074DEE-DF94-4CEA-A3FA-474ACFA93074}.Release|Any CPU.Build.0 = Release|Any CPU
-		{73FB2ED8-61F1-4BB4-A3C2-82534EAE0845}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{73FB2ED8-61F1-4BB4-A3C2-82534EAE0845}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{73FB2ED8-61F1-4BB4-A3C2-82534EAE0845}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{73FB2ED8-61F1-4BB4-A3C2-82534EAE0845}.Release|Any CPU.Build.0 = Release|Any CPU
 		{3A8E6744-603D-4D02-847F-07C593C4EE71}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{3A8E6744-603D-4D02-847F-07C593C4EE71}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{3A8E6744-603D-4D02-847F-07C593C4EE71}.Release|Any CPU.ActiveCfg = Release|Any CPU